Each of us is made of more than 20,000 genes that determine everything from our tendency towards baldness to our likelihood to suffer from Alzheimer's disease. On today's episode of Distillations we look at how researchers have sought to identify our individual genomes and how they can be interpreted. First, we learn how advances in DNA sequencing technology are increasing the likelihood that soon we will all have our genomes mapped. Then we talk to an expert in personalized medicine about the pros and cons of having such sensitive information available.